The Liberal Party, under new leader Laurence Decore, was the principal beneficiary of the voters' continuing distrust of Don Getty. The Liberals' share of the popular vote increased to over 28%, more than the NDP, but the party's legislative caucus increased from four to only eight members.

The Representative Party, which had elected 2 candidates in the previous election, did not run any candidates in 1989 (although it remained registered). Leader Ray Speaker defected to the Progressive Conservatives, while Walt Buck retired. The party disbanded soon after the election.